2. Fixes a phenomenon in which standard exposure may not be obtained, or an irregular exposure may result, when Silent LV (Live View) shooting with the following TS-E lenses: TS-E 50mm f/2.8L MACRO, TS-E 90mm f/2.8L MACRO, or TS-E 135mm f/4L MACRO.

3. Support for Exif 2.31 has been added.

The firmware for the two different camera models is different – make sure you download the correct firmware version for your camera.